Optimal Coordination of Overcurrent Relays Using Barnacles Mating Optimizer (BMO)

The purpose of optimal coordinating Overcurrent Relays (OCR) is to establish a precise time interval, called coordinated time interval, CTI between the backup and primary relays’ operations. In order to reduce all primary relays’ tripping time and ensure power system dependability the value of TDS and PS must be optimized. A nature-inspired metaheuristic algorithm known as Barnacles Mating Optimizer (BMO) is implemented to solve this optimal OCR coordination problem. BMO is verified to the IEEE 8-bus with normal inverse characteristic curve (IDMT) as in the IEC guideline. The findings are then compared to the other well-known optimization algorithms, such as GA and PSO to evaluate the BMO's feasibility and efficiency performance of the algorithm. Generated results showed that the proposed method improves OCR coordination’s OF in an IEEE-8 bus system better than other selected methods tested.